Elevator door



oct. 27, 1931. J. RAK 1,829,155

ELEVATOR DOOR Filed Oct. 8, 1927 2 Sheets-Sheet 1 /W drm mm Maw 73g/ @WE/s J. RAK

ELEVATOR DOOR Oct. 27, 1931.

Filed Oct. 8, 1927 2 Sheets-Sheet 2 Patented Oct. 27, 1931 UNITED STATES PATENT OFFICE JAROSLAV RAK, OF CHICAGO, ILLINOIS, ASSIGNOR TO VARIETY FIRE DOOR COMPANY,

A CORPORATION OF ILLINOIS l ELEVATOR DOOR Application filed October 8, 1927. Serial No. 224,877.

This invention relates to elevator doors.

Although not limited to a particular door structure, the invention relates particularly to fireproof elevator doors or closures in which there are a pair of vertically sliding sections, which meet when the door is closed and separate vertically in opening.

I am aware that the lower sections of doors of this sort have been constructed and supported to form a truckable filler or bridge between the building floor and the floor of the elevator car when the door is open, but the stops or supports have usually either been attached to and carried by the vertical guides Yor they have had flanged support on the top of the building floor when the door is open.

In the first case the stresses imposed upon the guides is objectionable and in the second case, the motor is frequently burned out or 2o other damage done by leaving a truck or other obstruction in such position on the building floor that it will obstruct the movement of the projecting, supporting and bridging plate or flange because of the projection of this flange over the floor of the building. In addition to this, the sections of the door have heretofore usually been free to separate from the wall with settling of the building, as well as under the stresses imposed by trucking across the door or any high or excessive temperatures to which the door may be subjected.

rf'he object of the present invention is the A provision of a generally improved and simpliied structure that may be economically produced and easily installed and which will provide a truckable filler or bridge without objectionable stresses upon the guides, as well as without the possibility of being obstructed by a truck or the like on the floor of the building, regardless of its position.

Another object is to provide for retaining the door sections against being forced away from the building wall and toward the path of movement of the elevator car, when the door is open.

The invention is illustrated in the accomp-anying drawings, in which Figure 1 is an elevational view of a. door embodying the present invention, looking from the shaft side and showing the door in closed position;

Figure 2 is a detailed section taken on the line 2-2 of Figure l;

Figure 3 is a vertical section taken on the line 3 3 of Figure 1 and showing the door sections in closed position; and

Figure 4 is a view similar to Figure 3 showing the door sections in open position.

To illustrate the invention, I have shown one door or any to which the invention is applied, it being understood that the details of the door per se form no part of the present invention, except as set out in the appended claim.

The door shown comprises an upper panel or section 5 and a lower panel or section 6, which may be suit-ably counterbalanced and which are connected by the connecting elements designated generally at 7 and which are trained over pulleys 8 suitably mounted upon the guides 9 which are secured to the building wall 10 and extend vertically along opposite sides ofthe door opening or passageway 12 on the shaft or elevator side of the wall. The elevator shaft is designated generally at 14 and a vertically movable elevator car is shown fragmentarily at l5.

The latching arrangement for the door is shown as comprising a disc 18 pivoted on the lower section 6 and provided with a handle 19. The disc 18 has pivoted thereto arms 20 and 21, the outer ends of which are arranged to engage suitable stops 22 secured to the sides 9. A spring 24 normally maintains the armsv 2O land 21 in their projected positions and when the panels or sections k5 and 6 are brought together into closed position, as shown in Figure 1, the outer ends of the arms 2O and 21 are snapped over the projections and latch the door in closed position. Vhen it is desired to open the door, the handle 19 is turned to rotate the disc 18 which disengages the arms 20 and 21 from the stops 22 so that the panels may be separated.

It frequently happens that when the panels or sections 5 and 6 are closed they come together with a considerable impact and t0 avoid the noise and jar on the door sections, in such a case, I provide a cushioning strip 25 which may ,be suitably attached to the bottom of the upper door section 5. This cushioning strip 25 may be of leather or other suitable material which will* cushion any impact between the upper and lower sections n f the dooras they are brought together.l

` respondingly-tapered or inclined' at 89V toin- Y o For purpose .of stopping the downward movement of the lower section 6 and supporting the upper surface 28 thereof sub-l stantially flush.. with the surface 29 of they building loor 30 and substantially-flush with the floor of the elevator car l5 when the door is open, a bar or strip 32, which maybe of suitable metal construction, is. suitably secured at 33 to the walllO justibelo'w` the iloor `30 and-extendsacross the .wall in the direction of the width of the door opening y12. 'Ihebar82 may be uninterrupted from one side of the door to the other or it may V comprise suitable spaced short strips or bars suitably attached to the wall ot' the building.

Cooperable with the stop orrbarV means 32 .zsfausimilar stop member orv bar means'35 secured. to the adjacent sideot the door sec,- tionorypanel 6 Iand extendingalong the uppermargin thereof. The upper edge of the i stop means .32 is inclined or tapered at 38 and ,the'lower-edgeof the stoplmember 35 is corterlock with the stop means 824 when engaged therewith and hold thesection y6 against sepatration. or moyement away froinfthe vwall 10 ywhen the l door isopen. r This' holds i the panel @properly in place and'ag-ainst sagging away from the wall when the door is openand trucks are being run across thetop of the door in passing from the floor to the eleva- :toror viceversa. l 'Y j The stop 32 and cooperating stop member 35. thereby perform the dual function of a stop Yandsupport means forystopping andV the door section 61s@-l that it will lie substan- 'wtially flush with the floors ofthe building and elevatory car to form a truckable iiller or edge in substantial register with the buildingioor, said ,door having a frame, and means for arresting the movement of the door andlfor holding the door against vseparation from the'wa'll whenv the bottom ofthe door has moved down into position a1 substantial distance below the oor and the top oit the door is in substantial register with the ffloor,

said means comprising a lat bar attached to the wall and extending acrossy substantially vithe entire widthof thedoor and having an inclined upper edge and a cooperating flat vbar carried Vby `the door for movement there- .with and having an .inclined lower edge coloperabl-e with the inclined upper edge of said first bar outside the-door frame-'and whollyV within the space between the door fra-me and the adjacent wall, said cooperating bar eX- tending acrosssubstantially the entire width 'of the door with its vinclined edge cooperating with the inclined edgeof said rst bar substantially completely across the door opening. a Y In witness whereof, I hereunto subscribe my name this 6th day ofOctober, 1927'. ,l e

v 5 JAROSLAVRAK.

supporting the top or upper surface 28 of bridge between the Ycar l5 .and the building Y floorvwhen the door is open and binder or interlock means forl interlocking the. section 6 .against separation from the wall 10.

The door sections 5 and 6 may have coi y sealing the joint between the upper andlower operating ineans4r0` and 4t2 for additionally j sections 5 and' 6:: against drafts, lire. andthe A like, when the door isclosed: When the door is open the lower section 6Y ishung andsupported Vby the wallor sill and `any trucking orfother stresses are removed from the guides.

i The combined stop, support and interlock 5 l vmeansfis relatively simple andinexpensive and may be conveniently installed. Y lAnother importantaspect of the invention isthatvery little space is required` between the-'wall l0 and the door to accommodate this stop. and interlock means. This space lsred-iuced to a minimum: as indicatedat. 45, 

